20.500.12556/RUL-149539 Interakcije vodotopnih polimerov z aktivnim blatom Interactions of water-soluble polymers with activated sludge Homopolimeri in kopolimeri poliakrilne kisline so podskupina vodotopnih polimerov, ki jih pogosto uporabljajo pri proizvodnji kozmetičnih izdelkov. Opravljajo različne naloge in se uporabljajo v velikih količinah, zaradi njihove definicije ter neznanega vpliva na okolje pa niso vključeni v evropsko zakonodajo. Posledično podatki o njihovi rabi in izpustih niso znani. V okviru diplomske naloge smo raziskali interakcije kopolimera poliakrilne kisline z aktivnim blatom. Spremljali smo adsorpcijo kopolimera na aktivno blato, vpliv na usedljivost in aktivnost samega blata. Ugotovili smo, da adsorpcija s časom narašča, pH pa nanjo nima večjega vpliva. Prisotnost kopolimera je zmanjšala usedljivost blata, iz naših rezultatov nismo mogli sklepati, ali kopolimer na aktivnost vpliva ali ne. Z gotovostjo lahko rečemo, da vodotopni polimeri interagirajo z aktivnim blatom v bioloških čistilnih napravah in zato je v prihodnosti raziskovanje njihovega vpliva na aktivno blato nujno potrebno. Homopolymers and copolymers of polyacrylic acid are a subgroup of water-soluble polymers commonly used in the manufacture of cosmetic products. They perform a variety of tasks and are used in large quantities, but their definition and unknown environmental impact mean they are not covered by European legislation. As a result, data on their use and emissions are not known. In the framework of the thesis, the interactions of a polyacrylic acid copolymer with activated sludge were investigated. The adsorption of the copolymer on the activated sludge, the effect on the settleability and the activity of the sludge itself were monitored. We found that adsorption increases with time and is not significantly affected by pH. The presence of the copolymer reduced sludge sedimentation and we could not conclude from our results whether or not the activity was affected by the copolymer. It is safe to say that water-soluble polymers interact with activated sludge in biological wastewater treatment plants and therefore future research on their impact on activated sludge is urgently needed. kopolimer poliakrilne kisline adsorpcija aktivno blato vodotopni polimer copolymer of polyacrylic acid adsorption activated sludge water-soluble polymer true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2023-09-07 11:26:37 2023-09-07 11:26:37 2023-09-10 03:16:56 0000-00-00 00:00:00 2023 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 22846 163799043 Persa_Sara_-_Interakcije_vodotopnih_polimerov_z_aktivnim_blatom.pdf Persa_Sara_-_Interakcije_vodotopnih_polimerov_z_aktivnim_blatom.pdf 1 174F3BDA17B950A17FEF45F311F91668 239e5e3e381d02a142dc821717aa1f8eabb7513e618e27a7faee395522fcbf26 a39bf7cd-4d60-11ee-9934-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=174023 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0